summary
ZBW series prefabricated substation (American box type transformer), also known as combined transformer, commonly known as American box type transformer, is a new product designed and developed in combination with the requirements of China's urban and rural distribution network by absorbing the advanced design concepts of foreign countries. Due to the special design of 10kV load transfer switch, plug-in fuse, backup protection fuse and high-voltage elbow cable plug, the device structure is greatly simplified, and the volume of the whole box transformer is very small, which can meet the needs of various power supply modes of terminal and ring network. Using double fuse protection, its fuse has the characteristics of current and temperature double sensitivity, so that the sensitivity and reliability of protection are greatly improved. The product can be used both outdoors and indoors, widely used in apartments, gardens, villas, office buildings, residential buildings, industrial and mining enterprises, business centers, and small cities Area and other places.

Model and its meaning


Product structure features
* compact structure and small volume, only 1 / 3 of the European box type transformer with the same capacity;
* fully sealed, fully insulated structure, reliable guarantee of personal safety, 200A cable connector can be plugged and unplugged with load;
The terminal type or ring network type power supply mode can be adopted, which is flexible and convenient;
It adopts Dyn11 connection method and double fuse protection, with advantages of no drift of neutral point, low noise, small loss and reliable power supply;
It can be equipped with fully shielded and fully insulated elbow type arrester, which is easy to install.
It can go deep into the load center with low operation cost.

The prefabricated substation is divided into two parts: the front part and the back part. There are high and low voltage operation intervals at the front, including high and low voltage bushings, load switch, tap changer, plug-in fuse, pressure release valve, oil temperature gauge, oil level gauge, oil filling hole, oil drain valve, etc.


Main technical parameters